Welding-tool.



S. S. MGRGAN,

WELDING TOOL.

APPLIGAToN MLED mma, 1914.

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IN VEN TOR. avm-:M

WJTNESSES UNTED STATES retrasa ermee.

SAIVLLJLL. s'. MORGAN, 0F ST. CHARLES, MISSURI, iS-SIGNOR T0 .AMERICAN CAR AND FOUNDR'Y COMPANY, OF ST. LOUIS, MISSOURI, .A COREORATION 0F NEW JERSEY.

VVELDING-TOOI To all whom 'it may concern:

Be it known that I, SAMUEL S. MORGAN, residing at St. Charles, Missouri, and being a citizen of the United States, have invented 5 certain new and useful Improvements in IWelding-Tools, of which the following is a full, clear, `and exact description, such as will enable others skilled in the art-to which it appertains to make and to use the same,

reference being had to the accompanying drawings, which illustrate the preferred form of the invention, though it is tobe understood that the invention is not limited to the exact details of construction shown and described, as it is obvious that various modifications thereof will occur to persons skilled in the art.

n said drawings Figure l is a diagrammatie view disclosing the improved welding V tool in condition to Weld the nail to the sheet. Fig. 2 is a side elevation of the Welding tool. Fig. 3 is an end elevation thereof.

ln some classes of work, itis necessary to ailix to bodies or". extensive dimensions multitudinous associated parts-of small size, the

process being long, arduous and costly, unless means be provided to promote rapidity and simplicity of operation. An example of the above conditions is the attachment to the walls of a railroad car otl clips for securing in place temperature insulation, and, as the insulation and the walls are substantially co-extensivc with each other and the points of attachment relatively close, it is not diiiicult to appreciate that great numbers of clips are used on the walls of a single car. l The advent of the steelcar permits the use of welding and the present invention has to do with welding apparatus having ay portable welding tool adapted to apply to the metallic walls or sheathing of such car, the clips above referred to, and other small liXtures as well.

One object of the present invention is to provide a welding tool oic such construction that no particular adjustment .of parts except its initial assembling is necessary to place it in condition for use` and which will bc in condition to repeat the welding operations vas rapidly as the action of the electric Speccaton of Letters Patent.

Application led May 23, 1914.

Patented Sept. 1, 1914. Serial No. 840,542.

current and the reinsertion of new Work Will permit. And, to this end, means have been provided for the quick insertion of new work and an unhindered removal of the tool after such work has been properly aiiixed to a structure intended to carry it.

Another object is to so form the Welding tool. that it will be independent of electric switches or other associated circuit-closing apparatus, and will itself constitute a circuit maker and breaker.

To render it easily portable, and also in-` expensive to construct, the tool is of very simple design and includes no heavy parts, is adequately strong, and is without movable mechanisms, which might become deranged and temporarily', at least, put it out of use.

Proper regard has been had for insulating the tool, so that it may be used with perfect safety, and its weight is so small that an operator can use it with one hand and make, if necessary lor desirable, refined calculations in positioning it against a body.

Referring to the drawing, 1 indicates an insulating handle, of substantially Dlshaped formation, though, obviously, its outline may vary widely from that shown.. Fitted to the exterior and parallelng the curved portion of the handle and also the to horizontal edge and the upper part of t e ver`v tical straight outer edge,is,a secondary ter:- minal strap 2'. Atits lower extremity, the terminal strap 2 is provided-with a socket il, either integral with or secured thereto adapted to receive and hold the terminal oi a flexible conductor 4. connected with one side of a secondary winding 5 of a transformer 6, wound to adapt it to welding purposes. At the opposite end, strap 2 is provided with a. work-holding welding electrode 7, preferably integral therewith, which contains a work-holding recess 8. This recess is formed in accordance with the type 95 of work it is to hold, here being illustrated as a cylindrical aperture suited to receive an ordinary nail A. Another secondary terminal strap 9 is also fitted to handle 1,but

in the form illustrated, it is of L-shape'd outline and parallels they major portion of the straight vertical edge and horizontal edge of said handle.

the lower v Y c at its loner extremity a .t .'lG simil r to sachet 3 of Q7 both and the ends of: the terminal om which they depend being in 'tion to each other? but separated ir gap of such dimensions as will a short circuit due tc a jumping of .ric current from one to the other. l0 is attached a *tilde conductor noted also to the seco ilary Winding; cornici fait the ripper end of s Welding electrode l2, which may ntema extension of the strap7 but is iown a removable piece. Electrode provided with a reiatively'hroad en i caring surfacei which entends lat* et ap 9, said surface being' preferably Alilith itstop flush with the upper 2o of strap il 4and both the end of strap 9 and the top ot electrode .l2 separated from ectrode Y and the adjacent end of strap 2 an air aap similar to and for 'the same ose 'as the lgap between sockets 3 and l0, jode l). extends downrzf'ardly a considhlc distance. lt is secured in place hy 'chie means, as screw 13, which, ncad AWell embedded in insulating fles through said handle, strap ad electrode l2. .lhe horizonterminal. strap 0 also secured to i, l by a screw i ininal strap cored to vthe nandl y number of pa 1 l against and 'the .f ap are incased within inslil. Whic in turn 'Wound with string toe protecting said, insulation accidental puncture oraluasion, and to hold it lirmly in place, llialso csulation 16 is preferably asbestos,

'es allowing it to serve as a temin addition-to func? iin -"or, and thas any operators hand due to avoided.

6 has :i primary winding 18, il); and across ilied with enlent generator heine/3` plee .d in conductor transformer to he out out, if

El, pai-t conductor i9, switch. 2l,

'indu-eter to wom to he f acnofl, into 'reces Q of in opposite. directions beyond eithen imary WindingV incassi ci? the hearing surface of Welding electrode l2 is placed in mechanical contact with the body, as sheet B, weich nail A is to he Welded. The tool is thus inclined outwardly from sheet B, and nail A, carried by electrode 7, is out of electrical contact with said slice Pressure and motion suitably applied to handle l "will cause the tool in its entirety to roclr'with electrode l2, until the head of nail A contacts with sheet B. A circuit tis thereby established from the secondary winding 5 of the transformer G through conductor 4, socket B, terminal strap 2 Welding electrode 7, nail A,'sheet B, welding electrede l2, terminal strap 9, socket l0, conductor ll to secondary Winding 5. vAs the primary circuit Was initially closed, primary Winding 18 induces a. current in secondary Winding 5, which traverses the circuit last traced, Welding nail A to sheet B. After a proper interval., best determined by experienceE the operator simply opens the switch 24 then withdraws the Welding tool from sheet B, the nail A remaining attached to the lattern The electrodes of the primary and secondary being dead the too-l may be removed and another nail may he quickly inserted and the tool applied in the same manner as before to another point on sheet B, the switch 2li is closed and the secondary circuit 1oecomes instantly restahlished as the new nail A contacts with sheet B.

`What claim is:

l. ln a Welding apparatus, a welding tool comprising Welding electrodes in a normally 'open circuit, one electrode being adapted to initially mechanically' contact 'with Work and the other to carry additional work, means for simultaneously moving both clectrodes to cause an electrical contact'hetween saidfirst and second mentioned Work, and a source of electrical energy in said circuit.

2. in Welding apparatus, vweldingr tool comprising an insulating supporting structure, welding Aelectrodes in fixed relation secured thereto, one electrode adapted to initially mechanically contact with Work andthe other electrode adapted to hold additional work, the first mentioned electrode adapted to have subsequent movement with respect to said first mentioned Work to actuate the other electrode to carry said additional Work structure to carry the latter work into electrical Contact with said first mentioned Work, and means for eleotrifying both electrodes.

4l. n Welding ap Ltrattasi', Welding 'transformer having' primaryancl secondary windings, the former in a normally closed circuit including a source lj energy and a switch and the latter in a normally open circuit with welding electrodes, an insulating structure with a. gripping portion supporting' said electrodes, one electrode being;l adapted to iniially mechanically Contact with Work and the other to carry additional work, said structure being 'adapted to lie rocked with the first mentioned electrode to carry said additional work into electrical contact; with said first-mentioned work.

A portable welding tool eonnirising an insulating supporting Structure haring ay handle portion, separated current-conduct. ing terminal pieces attached thereto, a weldinwr electrode secured to each terminal piece, olii! beinglr rockable and the other adapted to hold work, and means 'for connecting,` an electrical conductor to each terminal piece.

t3. A portable welding tool commirsing an insulating operating handle.` current conducting terminal st vaps conforming; and Se cured to Said handle, a weldin;- electrode scf cured to `each strap, one being rocliahle and the other adapted to hold worke means` for connecting each of Said latrapa to a flexible Al t) electrical conductor, and an insulatingrcovering for the gripping portion ot' said liandle.

T. A nortalile welding; tool comi'iriaing an operating` handle ot iniulating material. sein arated clnrcntcondacting' terminal straps conformin;1 and secured to aid handle` a weldingr electrode Secured to eacli strap, one licing roclt'alile in a single direction hut restrained from rocking in other directions, tllc other electrodtl llcingg adapted to carry work. means for connectingr cach ofsaid straps to a tiexililc electrical comluctor. and an insulating sheathing l'or Said handle.

H, portable welding tool comprising an alici-lured oicrating handle oi insulating material. separated currentconducting terminal straps coni'ox'mnj.:l and ,secured to ASaid handle.` spaced welding' electrodesI se,- cured to xaid rStraps, one clertrode heiner rockalile in-a predetcrmimd manncr `and Yformed to he restrained trom other rockinf,r and the other electrode being' shaped to ltold \\'orl mcan.-: l'or includiiu A said .atrapa4 in an cncreizalile electric circuity and a temperaturc and currlan insulating co\'cz"in;- Jfor Said handle. y

i), pm'talile weldixu; tool comluiaintgr a D-sliaped handle ot' inaulatincV material, acparated current-coralucting terminal Straps secured to said han le, spaced w c trodes Secured to Said Straps, one having a convex rocking surface than said handle and the other ele being formed to einliraco and liolfgl spaced sockets on Said atrapa eael l to inclosse and hold a tlexihle eleet'rit doctor. a temperature and carrello*Y ing covering for a port-ion of and a wrapping for said covering.

l0. in a welding tool7 welding electra 3 held in fixed relation to each other, one adapted Vto initiall)v contact with work and the other to hold additional work, and n '-J tor simultaneously actuating hotli electro es to tiring the distinct piecefl of Work into mechanical and electrical Contact.

lll. in a welding tool7 an insulating ,eu -v porting structure? separated removable 1 rent-conducting terminal pieces attac thereto. weldingT electrodes secured pieces` one llein rockahle and reim and the other adapted to hold worin means i'or includi j the cilrrent'-condit-iy pieces in an electric circuit.

12. .ln a device of the character desc an operating handle or intndatingnaief t current conducting terminal pieces aecereo thereto and sepafated or air gaps; ro( and work-holding` electrodes See tred to a terminal pieces? means for connectino c trical conductora to the latter, an instit; f salicatliii're for said handle and a terminal Piece, and protective cover for Said sheathing.

13.13. circuit making' and breaking ahle welding tool conipriaing an insul supporting` istria-inra current conduct terminal piccca` secured thereto and insalate" 'from cachI other. a Welding .electrode secured to each terminal piece` one adapted to hold work and theothe adapted to initially me chanically contact with other work and to he rocked thereon to anse Said iirat tioncd worl; to make electrical contact ritli said lqecond mentioned Work, and means 'tor electrifying liotli electrodes` said tool adapt ed to be witlu'lraiin from hotl. piccea of work.

lf'l. ln welding' apparatus. a weldingA tool comprising welding' eleatrodca in a nominally open circuit. one electrode beinel adapted 'to initiallyv mechanicall)vr contact with work and the, other to 'carry additional .'rorli7 means i'or simultaneously moving' ootli cle@ trodes to cauSc the making o'E an electrical. contact between -Qaid first and Second inentioned work. a iaourcc of electrical energy in Said circuit? am meanl other than said tool for renderinw the circuit dead.

l5. ln welding apparatus, Y k transformer provided with primary and seondary windings, the former in circuit w' sa o 4a source of electrical energy and. the latter in breaker forfrenderng the transformer nef- 10 normally-open crsult Wlth e. weldmg tool fectwe.

comprlsmg weldln electrodesi one' elee- In Witness whereof have hereunto set my tode' adapted to Lylltially mechanically conhaml in the presence of two Wltnesses.

tactwith Work anlthe olher to Carry addi- SAMUEL S MORGAN tional work, and means for simultaneously movngfboth elcrodes to cause :ux electrical Witnesses:

Contact between vsaid first and second men- T. H. GIBBS, toned Work,` and an independent Circuit L. T. CARROLL. 

